Implement receiving side of web notification inline replies

content/public/common/platform_notification_data.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_
 #define CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_
 
 #include <stddef.h>
 
 #include <string>
 #include <vector>
 
+#include "base/strings/nullable_string16.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace content {
 
-// A notification action (button); corresponds to Blink WebNotificationAction.
+enum CONTENT_EXPORT PlatformNotificationActionType {
+  PLATFORM_NOTIFICATION_ACTION_TYPE_BUTTON = 0,
+  PLATFORM_NOTIFICATION_ACTION_TYPE_TEXT,
+};
+
+// A notification action (button or text input); corresponds to Blink
+// WebNotificationAction.
 struct CONTENT_EXPORT PlatformNotificationAction {
   PlatformNotificationAction();
   ~PlatformNotificationAction();
 
+  // Type of the action (button or text input).
+  PlatformNotificationActionType type;
+
   // Action name that the author can use to distinguish them.
   std::string action;
 
   // Title of the button.
   base::string16 title;
 
   // URL of the icon for the button. May be empty if no url was specified.
   GURL icon;
+
+  // Optional text to use as placeholder for text inputs. May be null if it was
+  // not specified.
+  base::NullableString16 placeholder;
 };
 
 // Structure representing the information associated with a Web Notification.
 // This struct should include the developer-visible information, kept
 // synchronized with the WebNotificationData structure defined in the Blink API.
 struct CONTENT_EXPORT PlatformNotificationData {
   PlatformNotificationData();
   PlatformNotificationData(const PlatformNotificationData& other);
   ~PlatformNotificationData();
 
@@ skipping 55 matching lines @@
   // a serialized string. Must not exceed |kMaximumDeveloperDataSize| bytes.
   std::vector<char> data;
 
   // Actions that should be shown as buttons on the notification.
   std::vector<PlatformNotificationAction> actions;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_